From the Sector

Winding technology offers simplicity, productivity and product control for premium tissue products

Paper Converting Machine Company (PCMC)—a division of Barry-Wehmiller and a global supplier of high-performance converting machinery for the tissue, nonwovens, package-printing and bag-converting industries— is pleased to announce the launch of its Paragon tissue rewinder.

Paragon features a patent-pending center-surface design that produces superior caliper, bulk and diameter flexibility. Log winding takes place in a new-concept nest, comprised of a winding drum, winding belt, compound-motion rider roll and center drives.

"Paragon offers a completely new method of tissue rewinding,” said Andrew Green, PCMC Vice President of Tissue and Folding. “It is radical only in the sense that we made the wind nest as simple as possible. Usually when you increase a machine’s speed, you sacrifice ease of use, but we know customers want both. With Paragon, we created a machine capable of higher speeds that is easier to operate. It’s remarkable.”

Many of Paragon’s subsystems are proven technology solutions in use on PCMC’s trusted Forte rewinder, with several upgrades. Paragon’s enhanced web handling and grade changes are mainly recipe-driven, and its specially designed tools guide fast calibrations. Like the Forte rewinder, Paragon has an intentional open-access design, plus, typical areas to clean require less frequent attention, and recovery and restart occur safely and quickly. Paragon also closes the gap between humans and machines with a new Smart Touch human-machine interface (HMI), which delivers Industry 4.0 tools that transform data to action. Following high-performance design principles, the clean and modern interface provides enhanced operator help, and new smart analytic features offer insights to improve overall equipment effectiveness. The Smart Touch HMI works much like today’s mobile devices with swipe functionality, enabling a short learning curve and improved productivity.

“While the focus is on the new wind nest, a Paragon line is more than that,” said Green. “We added elements like advanced web handling and a state-of-the-art HMI. At PCMC, we are not into hyperbole, but we believe that this machine has raised the bar and is what future tissue-converting machines will be judged against. And, that’s why we called it Paragon.” 

• Swiss weaving machinery manufacturers are in the forefront of novel application development

Shoes and electronic calculators are probably not the first products people would associate with the textile weaving process. But they certainly signpost the future for woven fabrics, as two examples of the ever-wider possibilities of latest technology in the field. Fashion and function already combine in the increasing popularity of woven fabrics for shoes, and this is a present and future trend. Calculators in fabrics? That’s another story of ingenious development, using so-called ‘meander fields’ on the back and keys printed on the front of the material.

These glimpses of the outlook for modern weavers are among the highlights of developments now being pioneered by Swiss textile machinery companies. All weaving markets require innovation, as well as speed, efficiency, quality and sustainability. Member firms of the Swiss Textile Machinery Association respond to these needs at every point in the process – from tightening the first thread in the warp to winding the last inch for fabric delivery. They also share a common advantage, with a leading position in the traditional weaving industry as well as the expertise to foster new and exciting applications.

Technology and research cooperation
The concept of a ‘textile calculator’ was developed by Jakob Müller Group, in cooperation with the textile research institute Thuringen-Vogtland. Müller’s patented MDW® multi-directional weaving technology is able to create the meander fields which allow calculator functions to be accessed at a touch. A novel and useful facility, which suggests limitless expansion.

Today, the latest woven shoes are appreciated for their precise and comfortable fit. They score through their durability, strength and stability, meeting the requirements of individual athletes across many sports, as well as leisurewear. Stäubli is well known as a leading global specialist in weaving preparation, shedding systems and high-speed textile machinery. Its jacquard machines offer great flexibility across a wide range of formats, weaving all types of technical textiles, lightweight reinforcement fabrics – and shoes.

It’s possible to weave new materials such as ceramics, mix fibers such as aramid, carbon and other, and produce innovative multi-layers with variable thicknesses. Such applications put special demands on weaving machines which are fulfilled by Stäubli high-performance TF weaving systems.

Great weaving results are impossible without perfect warp tension, now available thanks to the world-leading electronic warp feeding systems of Crealet. Some market segments in weaving industry today demand warp let-off systems which meet individual customer requirements. For example, the company has recognized expertise to understand that geotextile products often need special treatment, as provided by its intelligent warp tension control system. Individual and connective solutions are designed to allow external support via remote link. Crealet’s warp let-off systems are widely used in both ribbon and broadloom weaving, for technical textiles applied on single or multiple warp beams and creels.

Functional, sustainable, automated
Trends in the field of woven narrow fabrics are clearly focused on functionality and sustainability. The Jakob Müller Group has already embraced these principles – for example using natural fibers for 100% recyclable labels with a soft-feel selvedge. It also focuses as much as possible on the processing of recycled, synthetic materials. Both PET bottles and polyester waste from production are recycled and processed into elastic and rigid tapes for the apparel industry.

For efficient fabric production environments, it is now recognized that automated quality solutions are essential. Quality standards are increasing everywhere and zero-defect levels are mandatory for sensitive applications such as airbags and protective apparel.

Uster’s latest generation of on-loom monitoring and inspection systems offers real operational improvements for weavers. The fabric quality monitoring prevents waste, while the quality assurance system significantly improves first-quality yield for all applications. Protecting fabric makers from costly claims and damaged reputations, automated fabric inspection also removes the need for slow, costly and unreliable manual inspection, freeing operators to focus on higher-skilled jobs.

Smart and collaborative robotics (cobots) offer many automation possibilities in weaving rooms. Stäubli’s future oriented robotics division is a driver in this segment with first effective installations in warp and creel preparation.

Control and productivity
Willy Grob’s specialized solutions for woven fabric winding focus on reliable control of tension, keeping it constant from the start of the process right through to the full cloth roll. Continuous digital control is especially important for sensitive fabrics, while performance and productivity are also critical advantages. In this regard, the company’s large-scale batching units can provide ten times the winding capacity of a regular winder integrated in the weaving machine.

The customized concept by Grob as well as design and implementation result in great flexibility and functionality of the fabric winding equipment – yet another example of Swiss ingenuity in textile machinery.  
There is even more innovation to come in weaving – and in other segments – from members of the Swiss Textile Machinery Association in future! This confident assertion is founded on an impressive statistic: the 4077 years of experience behind the creative power of the association’s member firms. It’s proof positive that their developments grow out of profound knowledge and continuous research.

Novibra presents the latest innovations in spindle technology and energy saving measures at the forthcoming ShanghaiTex.
The energy saving spindle LENA has been designed for the highest speeds and lower energy consumption. It is the only spindle in the market with 17.5 mm wharve diameter and energy savings in the average of up to 6%.

The new generation of clamping crowns CROCOdoff and CROCOdoff Forte introduce genuine doffing without underwinding. The crowns work automatically depending on the spindle speed. The major advantages are significant reductions in maintenance costs. That is based on a lower ends down rate after doffing and minimized cleaning of the underwinding area.

Novibra’s goal is to bring beneficial and customized solutions to the customers helping them to keep their leading position in the market. Novibra is looking forward to discussing the new products that fulfil one of today’s biggest demands for energy savings and maintenance costs reduction.

At FILTECH, eurolaser will demonstrate the advantages of a large-format laser system in the processing of filter material. The handling of the material from the roll is particularly comfortable with eurolaser's own conveyor system in combination with a feeding unit. At the FILTECH, eurolaser presents its L-3200 with a table size of 1,800 x 3,200 mm.

Large-format laser systems are ideal for cutting of filter material. The contactless process guarantees a constant cutting quality without tool wear. The table concept with extraction reduces dust and keeps the material in place at the same time. In addition, the thermal laser process ensures that when cutting synthetic textiles, the edges are sealed and thus protected from fraying. This makes subsequent processing much easier. The laser also allows fine details and filigree structures which cannot be produced by a knife.

Conveyor – for all materials from the roll
Especially for all materials from the roll, eurolaser offers several of its systems as conveyor versions. In these versions, the surface of the processing tables consists of a stainless steel rod mesh. They are equipped with an automatic unwinding unit as fabric feed. The unwinding speed adapts to the retraction of the conveyor and the decreasing roll diameter. For very large and heavy rolls there is also a driven unwinding unit. Integrated laser projection lines indicate the correct position so that the roll change is fast and error-free. The remaining length capture ensures that there is always enough material left on the roll for the respective job.

For even more flexibility, there is space for additional tools or marking modules next to the laser. The motion system comes from the Swiss world market leader for digital cutters ZÜND. The machines are equipped with the Laserscout software suite, which contains the right software packages tailored to the application.

• Innovative Textile Processes

Innovations are welcome. Based on innovations, many changes in textile processing are leading to more efficiency in process workflows. At the International Cotton Conference in Bremen on Wednesday, March 21st, Session IV Textile Processing, which takes place from 4:00 pm to 6:00 pm, is dedicated to this subject area and attractive examples.

Sustainable
Michael Tuschak, Mayer & Cie., Germany, informs about the 3-in-1 concept of Spinitsystems. Spinning, cleaning and knitting are all combined in one machine. This enables the production process of high-quality single jersey knitwear to be shortened significantly, which saves energy costs and reduces CO2 emissions.

Indigo.
An old dye returns to glory. Dr. Dean Etheridge of Texas Tech University, USA, talks about a new, innovative indigo dyeing process for cotton yarns using foam. This saves large amounts of water and is now increasingly being used by major brands in jeans production.

Efficient.
Amin Leder, Trützschler GmbH & Co. KG, Germany, presents a technique in which the stretching process for rotor yarn production does not take place in a separate machine, but is integrated into the carding. This makes it possible to efficiently process even cotton with a higher waste content.

Overview.
Harald Schwippel, from Rieter, Switzerland, summarises all four major spinning technologies for cotton – ring spinning, compact spinning, rotor spinning and air-jet spinning. His talk provides an overview of the possibilities that each of these processes currently offers for the manufacture of different yarns and the most efficient options for different applications.

More to know
In the run-up to the International Cotton Conference, the Fibre Institute Bremen and the Cotton Exchange are organising a specific seminar for spinning mills on Tuesday, dealing with the efficient handling of contaminants in cotton, from elimination in production to removal in winding. On Friday morning, Expert Session IX deals with the exchange of the latest research results, e.g. in the field of ginning in relation to cotton quality, or the important issue of checking the traceability of GMO-free cotton.

In May 2017, Jochen Adler, Vice-President and Chief Technology Officer at Oerlikon Textile GmbH & Co. KG, presented a Oerlikon Barmag take-up winder as a partial gift to Prof. Dr Thomas Gries, head of the Institut für Textiltechnik (ITA) at RWTH Aachen University. The new Type ASW602 winder, which is equipped with modern control software and user interface, replaces the former institute’s Barmag take-up winder.

Due to this modernisation, ITA has access to a latest generation take-up winder which is used for various research projects. The new winder is applied at ITA’s two pilot melt spinning plants and ensures the transfer of new research and development insights into the pilot scale. Furthermore, this winder has two winding positions and operates with winding speeds between 2500 m/min and 5500 m/min. The new winder is suitable for all kinds of polymers, from polypropylene to polyethylene, polyester, polyamide etc. as well as for the production of several types of yarn, such as industrial yarn, pre-oriented yarn and fully-drawn yarn.
“We thank Oerlikon Barmag for the generous partial gifting and the support during the set-up of the new take-up winder”, says Prof. Dr Thomas Gries. “The new equipment will keep the institute’s machine park on a high and powerful level.” The head of ITA’s chemical fibre department Dr Thorsten Anders adds: “This winder is designed for the needs of chemical yarn research. It allows state of the art technology research and development and pilot-scale production. We will use it for the melt spinning plants in the single- and bi-component spinning process. This way, we can access a wide variety of producible yarn types.“